package String2;

import java.util.Locale;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 洪汤泽大帅哥
 * Date: 2024-11-10
 * Time: 11:34
 */
public class demo1 {
    public static void main(String[] args) {
        String str1 = "hello";
        String str2 = str1.toUpperCase();
        System.out.println(str1);
        System.out.println(str2);
    }
}
